-  Class
-  NDT80 domain factors
-  "Class description: A beta sandwich comprising a three-standed sheet packed against a four-stranded sheet constitutes a scaffold that exposes the DNA-contacting amino acid residues of six distinct regions. Most of these residues are located in loops, some are part of short alpha-helices or beta-strands. They form both minor and major groove contacts to the DNA. (PMID 12411490)"